public void DrawArrow(Color fillColor, PointF origin, float height, float width, VectorF direction, bool isFixedSize)
{
fillColor = _transform.Transform(fillColor);
origin = _transform.Transform(origin);
direction = _transform.Transform(-direction);
direction.Normalize();
if (isFixedSize)
{
_primitives.Add(new _Arrow(origin, height, width, direction, fillColor));
}
else
{
var p1 = origin + direction * height;
var v = new VectorF(direction.Y, -direction.X);
var wd = v * width / 2;
var p2 = p1 + wd;
p1 -= wd;
var geo = new _ComplexGeometry();
var subgeo = new _SimpleGeometry(PenF.NULL, fillColor, origin, false);
subgeo.StreamTo(new _Line(origin, p1, PenF.NULL));
subgeo.StreamTo(new _Line(p1, p2, PenF.NULL));
subgeo.StreamTo(new _Line(p2, origin, PenF.NULL));
geo.AddChild(subgeo);
geo.Close();
_primitives.Add(geo);
}
}
private void _DrawRectangle(PenF pen, Color?fillColor, params PointF[] points)
{
var geo = new _ComplexGeometry();
var subgeo = new _SimpleGeometry(pen, fillColor, points[0], false);
subgeo.StreamTo(new _Line(points[0], points[1], pen));
subgeo.StreamTo(new _Line(points[1], points[2], pen));
subgeo.StreamTo(new _Line(points[2], points[3], pen));
subgeo.StreamTo(new _Line(points[3], points[0], pen));
geo.AddChild(subgeo);
geo.Close();
_primitives.Add(geo);
}
private void _LineTo(PointF point, bool isStroked)
{
_subGeo.StreamTo(_DrawLine(isStroked ? new PenF() : PenF.NULL, _current.Value, point));
_current = point;
}